Eyelash extension



FIG. 1 is a front elevation view of an eyelash extension showing my new design;

FIG. 2 is a rear elevation view thereof.

FIG. 3 is a left elevation view thereof.

FIG. 4 is a right elevation view thereof.

FIG. 5 is a top plan view thereof.

FIG. 6 is another top plan view thereof; and,

FIG. 7 is a perspective view thereof. 

CLAIM The ornamental design for an eyelash extension, as shown and described. 